Improvement in galvanic  batteries



A. c. GARRATT.

Galvanc Battery.

Patented July 7, i868 @uitrit tstee @strut @fitte Letters Patent No.79,567, dead .my 7, 1 868.

IMPROVEMENT l IN GALVANIG BATTERIES.

on einen einen nf a met if-ima anni tnnnng`-na if in amt-To'ALL-rnRSoNSTo nHoM THESE PRESENTSMAY coMn:

Be it known that I, ALFRED C. GARRATT, of Boston, in Athe county ofSuffolk, and Stete'of Massachusetts,/ha.ve inade a new anduSefnlInvention having Reference to Batteries ier `the Genceration ofElectricity through the action of an acidon two diierent metals; and I:1o-hereby declare the same to'be fully described in the followingspecification, andrepresented in the accompanying drawings, of which- Bigure lis s .n elevation of o ne of'my improved batteries "as open.

Figure 2 is a transverse section of it. 5*

`Figure Sis a Section exhibiting the arrangement of its metall c barsand insulators.

Figure `Ll is a sideview oi' one of the cinc bars.

Figure 5 is a Vside View of one ofthe copper or yellow-metal ears of theseries of bars in each oi' the fraines.

The battery improved by me is designed. chiefly for the convenience ofmedical practitioners in the production of electrical currents forcurative or other purposes, 1t not, however, being limited thereto, asit often may v bQJiSeflllly employed in other` duties.

In some respects it may be said to contain one or more improvements withreference to the battery on which Letters Patent, No. 72,628, weregranted to me en December 2li, A. D. 1867.

My present oriinproved battery is one of great durability andpower, oflittle expense, and simple in its construction, iseasily cleaned, andis-reezly fer-use with. little preparation-.er .delay,.an,d.w.hen Botnuse infr-ee...

from destructive acids.. The ordinary combinationend arrangement ofsheets or'disks of rnetals and cloths of the"voltaic pile is well'known.I therefore disclaim such.`

The nature of`my invention' consists principally in a new arrangement ofthe metallic bars and their insulaters; also, in the combination of twoor more series of bars by hinging their frames together, and connectingthetwo series'by a chain or lexile connection, the same being so as toenablev the series, with its frames, to be foldednpon 'oneanother in aconvenient manner for package und transportation.

Each bar of the scriesmy be rectangular, or itmay have any othersuitable fornnin its transverse Section, Each series is composed of barsof zinc and copper, or yellow metal, arranged alternatelyjthesarne beingas shown in the drawings, in whichda q denote the bars of zine, and b bb t-hose of cbpper or yellow metal.

' Each series is placed within the grooves of two grooved bars, ce,of-ai'raine, A., composed of two such bars, and metallic end connectionsd.

The two frames A A, I connect by hinges, arranged as shown at e e, inorder thtione may be folded down upon the other, or both be unfolded, soas to he in one plane, and I connect, by means of a metallic chain, f,the

terminal zinc-bar of oneframe with the next adjaeent-terminal copper oryellow-metal bar of the other frame,

whichmay'bc accomplished .by means of small staples,g g,or theirequivalents, connected with, inserted in, or

coniledngainst such terminal bers'.

Furthermore, instead of placing between each pair of zindand copper orzinc and yellow-'metal bars a. strip of cloth, I dispense'with suchaltogether, and simply arrange the two bers parallel and at a, Shortdistance asunder,

and place between them', at or near their ends, 'two small insulators orblocks, h k, of getta percha, glass, vulcanite. or equivalentinsulating-material, leaving between these blocks and the nextadjacent'side of the two barsva,'ar open space, i, the same being asshown in iig. 3. Y l

Each 'pair oi" the bars so arranged and insulated has a similar narrow.space, k, between. it and the next pair, the next adjacent bars of thetwo pairs being kept apart by tacks or metallic blocks placed betweenthem,

er, what is better, by forming one of such bars withA small metallicprojections Qrubutments ,'l Z, to extend from it in manner as shown iniig. 4. t

Furthermore, each metallic bar so provided with abutments is to beconnected by solder to the bar which rests against such abutments, thesolder being applied or arranged -a`t the ends of the two bars in manneras shown atjm m in the drawings.

the construction of this ioav''j, es eh Teer of zine :mii each be? ofother 'meiszs has meallic connections,

as explained, and very narrow space between Line two bays. Eeieh pair ofthe dissimilar bars so connected,

besides 'being insulaed {xc-m the pair to i; iai; insulating-medie,described, has e :marrow spaee between it und She next pain l En oi'rc-rto have the battery opent@ to advsuimge, .each e? ce'eiiran, oii betweenthem impe er poons of the excitingdiqu .1, when it may be spread orbrusixe. over, the so es of bo.rs, and iie here ere so arranged the'mt'tery is woneifaly increaoedin power, or is much more eeeve oben eibut-tary made stripe of eioon piaceri between the meteiiio bam inmanner as -repref Gated iifhe i ion end dzowingi ef the lpotenthereinbeore mentioned, Besides this, my battery is simpier ami more v3,as Weil :Le more oesij; elem-seed. No1; having the strips of cir/sii,it; has nothing to :ibsorb''the riefl, ai thereby, whim Vrie battery isnot waz-ritmi for use, heid i.; in contest with and in esosive motion onhe met@ claim zie :s '1* constructed wih i'iw' bays; so @wronged thatthere similv be a narrow 'open Space, f ber, an@ avi in, if: imja ofeach pair of diesimi'ier meals insuizitedby means .ueiiie eonzeoaions etiziei? emile, the whole being substam proj eions or abutments extendedfrom it ima of soir with.

1nd, for im impose desemoe.

by hinges emi -fa spaces musi; be so narrow als readily to

